Franklin County (Tri-Cities)
December
Weather in Franklin County, Washington for December 2026
Your guide to Franklin County weather in December - trends and predictions
With an average of 2 snowy days, Franklin County usually enjoys a light touch of snow in December.
In general, the average temperature in Franklin County at the beginning of December is 6.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 5.4 °C by the end of December.
Franklin County in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 89.1 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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12
Dry days
17
Rainy days
2
Snow days
6°/1°
Temperatures
19 km/h
Avg max wind
85 %
Avg humidity
Franklin County Weather December
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Temperatures trend during December in Franklin County
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December weather in Franklin County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Mist | 4° /-3° | 1.2 mm | 0 cm | |
| Dec. 2 |  Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 3 |  Moderate rain | 5° /0° | 3.1 mm | 0 cm | |
| Dec. 4 |  Light rain | 5° /1° | 2.4 mm | 0 cm | |
| Dec. 5 | Light rain | 8° /1° | 4.1 mm | 0 cm | |
| Dec. 6 |  Patchy rain possible | 8° /2° | 0.8 mm | 0 cm | |
| Dec. 7 | Light rain | 9° /1° | 4.8 mm | 0 cm | |
| Dec. 8 | Mist | 10° /3° | 0 mm | 0 cm | |
| Dec. 9 | Light drizzle | 7° /1° | 0.3 mm | 0 cm | |
| Dec. 10 | Moderate rain | 7° /2° | 4.1 mm | 0 cm | |
| Dec. 11 | Overcast | 9° /2° | 0.1 mm | 0 cm | |
| Dec. 12 | Overcast | 6° /2° | 0 mm | 0 cm | |
| Dec. 13 |  Partly cloudy | 6° /0° | 0 mm | 0 cm | |
| Dec. 14 |  Cloudy | 7° /2° | 4.3 mm | 0 cm | |
| Dec. 15 | Overcast | 8° /2° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 7° /2° | 7.3 mm | 0 cm | |
| Dec. 17 |  Sunny | 8° /2° | 4.8 mm | 0 cm | |
| Dec. 18 | Light drizzle | 9° /2° | 3.1 mm | 0 cm | |
| Dec. 19 | Patchy rain possible | 7° /1° | 0 mm | 0 cm | |
| Dec. 20 | Partly cloudy | 8° /2° | 0 mm | 0 cm | |
| Dec. 21 | Partly cloudy | 6° /1° | 1.4 mm | 0 cm | |
| Dec. 22 | Overcast | 0° /-5° | 3.5 mm | 0 cm | |
| Dec. 23 | Mist | 1° /-3° | 0.9 mm | 0 cm | |
| Dec. 24 |  Moderate snow | 3° /-1° | 10.4 mm | 0.6 cm | |
| Dec. 25 |  Light freezing rain | 4° /-2° | 1.2 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 7° /2° | 18.1 mm | 0 cm | |
| Dec. 27 |  Moderate rain at times | 6° /1° | 2.6 mm | 0 cm | |
| Dec. 28 | Overcast | 6° /1° | 4 mm | 0 cm | |
| Dec. 29 | Patchy rain possible | 5° /0° | 4.5 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 7° /0° | 2 mm | 0.3 cm | |
| Dec. 31 | Cloudy | 3° /-2° | 0.2 mm | 0 cm | |
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Important Notice
Our weather forecast for Franklin County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Franklin County forecast closer to your planned date for the most up-to-date weather information.
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Franklin County in December - FAQ
What are the expected maximum and minimum temperatures in Franklin County during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 1°.
How much rainfall should be expected in Franklin County during December?
Moderate rainfall is anticipated in Franklin County during December, with a total of 89.1 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
Will it snow in Franklin County in December 2026?
Franklin County experiences an average snowfall of 0.823333 cm during December, occurring over 2 days.
What are the typical wind conditions in Franklin County during December?
The average wind speed in Franklin County during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Franklin County snow forecast December 2026
Track daily snowfall levels and discover Franklin County’s snowy potential this December ❄️
On average, Franklin County sees 2 snowy days during December, with approximately 0.8 cm of total snowfall.
December rainfall patterns in Franklin County
Explore the daily rainfall trends and prepare for Franklin Countys December weather 💧
Typically, Franklin County has 17 rainy days in December with a total of 89.1 mm of rainfall.
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Where is Franklin County?Get accurate weather forecasts for Franklin County, located at latitude 46.245 and longitude -119.196. Stay updated with localized weather information tailored for Franklin County.
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